All Answers 358154 Answers

The slope of the given line = -8

A perpendicular line will have a negative reciprocal slope.....so....our line will have a slope  = 1/8  = m

The equation is

y - y1  =  m ( x - x1)

And using  (-3, -5)   for (x1, y1) we have

y -  -5    =  (1/8) (x - -3)   simplify

y + 5 = (1/8)( x + 3)

y  + 5 = (1/8)x + 3/8             subtract 5 from both sides

y = (1/8)x + 3/8 - 5

y = (1 /8)x  + 3/8 - 40/8

y = (1/8) x - 37/8

A parallel line will have the same slope as the given line......so using the same idea as above

y -  -5 = -8 (x - - 3)

y + 5 = -8(x + 3)

y + 5 = -8x - 24

y = -8x -29

You are more than likely lagging. Try refreshing the page.

You got 18 correct....so   18/25 =  72%......so.....you actually got a better grade....!!!

Well I calculated a grade of 72 either there were bonus questions or he/she gave you extra points

There were 25 questions.

It is the answer of a multiplication problem.

It depends on how many questions there were on the test.

hello madam.

How can you be bored?  You can't be bored of maths.  Go forth and multiple is what it's all about.

Ok play on your phones 

(5/9) (8 + c) = -20       multiply both sides by 9/5

8 + c =  -20(9/5)

8 + c  = -180/5

8 + c = -36     subtract 8 from both sides

c = -44

Hey

2.25  / 3  =   multiply top/bottom by 100

225 / 300 =

[9 * 25[ / [ 12*25]  =

9/12 =

3/4

5/6 , 7/9, 3/5

Get a common denominator  =  5 * 2 * 3^2  = 90

5/6 = 75/90

7/9  = 70/90

3/5 = 54/90

So.......they are arranged from greatest to least......

You have a 1/3 probability of getting the correct answer on any question....so.....

(1/3)(1/3)  = 1/9  =  about 11.11%

I have the same problem at  my local library......my laptop at home is OK.....we have at least one serious member who has the same problem that you do......he's never been able to get on.....I don't know if it's some kind of security software problem or something to do with the server you're going through .....  [or some other issue].....sorry.....!!!!!

Rarinstraw is exactly correct.

Asuuming that 0 can be used  [ even the number, 000000000]. we have 10 number choices for each position....so.......

(10) (10) (10)......(10)(10),  nine times =  one billion possibilties  !!!

Seriously..

[2.8 / √2  m]   =   about  1.98 m

More than that, poo69..........

8!  ways =  40320  ways

LambLamb....this is a VERY difficult thing to do  !!!!.......It can be managed with something called "LaGrange Polynomial Interpolation,' but this process is tedious even for a couple of points, much less eight of them....!!!!

I tried using WolframAlpha [ a very sophistacated online tool ].....it would handle up to the firstt five points, but after that, it apparently developed "sensory overload"  (LOL!!!!)

Perhaps some better mathematicians than me [ Alan, Bertie, Heureka, etc.] know how to do this using other techniques/resources......???

Sorry  !!!!!!

820*85% = 697

64 wasys to arrange it 

Since there are TEN numbers in between and including 0 and 9, do 10^9. 

10^9 = 1000000000, so there are 1 billion different numbers.

No.